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Finding the Fourth Proportional to 2,931,605,991.60, 4,397,408,987.40 and 2,931,605,991.60

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Solution

The fourth proportional to 2,931,605,991.60, 4,397,408,987.40 and 2,931,605,991.60 is: 4,397,408,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931,605,991.60 : 4,397,408,987.40 = 2,931,605,991.60 : x
  2. Step 2: Convert to fraction form
    2,931,605,991.60/4,397,408,987.40 = 2,931,605,991.60/x
  3. Step 3: Cross multiply
    2,931,605,991.60x = 4,397,408,987.40 × 2,931,605,991.60
  4. Step 4: Simplify right side
    2,931,605,991.60x = 12,891,470,534,977,527,808
  5. Step 5: Solve for x
    x = 12,891,470,534,977,527,808/2,931,605,991.60
  6. Step 6: Final answer
    x = 4,397,408,987.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.